Mr. martez, paraplegic since an automobile accident, had decreased bone density, or in his legs from atrophy of disuse.

porosis.

Explanation:

Osteoporosis may be defined as medical condition in which the bone becomes extensively weak and start brittle. the broken bone risk increases in osteoporosis.

Mr. Martez after an automobile accident is paralegic. His bone density has been decreased or suffering from osteoporosis in his legs from the disuse of atrophy.

Thus, the answer is porosis.

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